The Wisconsin Bike Fed is a Statewide advocacy group that helps make biking and walking safer in Wisconsin. As you may have read, there has been an increase in Wisconsinites who choose to walk and ride bikes getting killed by drivers, often drivers who choose to use their phones whilst driving/drive distracted.
A walking school bus is a group of kids walking to school with one or more adults. It can be two families taking turns walking the kids or can be carefully planned routes with meeting points, timetables and consistent volunteers. There is also a variation that includes a bicycle train with adult leaders on the ride.
After learning many parents wanted their kids to walk to school but were afraid of their kids getting killed by distracted drivers, especially crossing Oklahoma Ave, the WI Bike Fed worked for approximately six years with Fernwood Montessori school, parents, students, and administrators. As of today, they now have a walking school bus.
More info here.